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Das xBoot Slot

Join the submarine crew as they set out on hazardous surveillance in the Atlantic for sunken WW2 riches. Watch out for xNudge Wilds appearing 4-rows high, explosive XBomb multiplier wilds, and radar scatters to help you activate two of the game’s free spins bonus rounds.
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NoLimit City
rating RTP
rating Paylines
rating Volatility
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What does John have to say?

This is not your ordinary slot game with its mix of complex bonus features which may or may not put you off from playing it. But, if you’re looking for something special and atmospheric, Das xBoot is a perfect choice.


Leanna Madden

100% up to €300 + 25 Free Spins on Book of Dead

Visit Site See full T&Cs for more detail. 18+ Please Play Responsibly.
  • Thumbs-Up 4 types of wild symbols
  • Thumbs-Up 2 x free spins rounds
  • Thumbs-Up 55,200x your stake max potential
  • Thumbs-Down Varying RTP
  • Thumbs-Down Complex bonus features

Just when you think all the themes have been exhausted, Nolimit City blasts you back in time to the horrors of WW2. Based on the 1981 West German war film produced following real experiences aboard German submarine U-96, Das xBoot is a shape-shifter slot from the developer. It starts with a 6-reel and 2-3-4-4-3-2 row combination that can transform to a 2-3-8-4-3-2 and 2-4-5-5-4-2 row slot during the two different bonus modes.

Additionally, thanks to different types of wilds, the ways to win can also grow from 567 up to 75,712 on every spin. With a chance to win up to 55,200x your stake in payouts, will you be brave enough to join the crew aboard a submarine? Read our slot review for more details on how to survive this risky search for sunken treasures.

SLOT FEATURES xNudge Wilds, xWays, xBomb Multiplier Wilds, Free Spins
RELEASE DATE 14th September 2021
SLOT TYPE Video Slot
REELS, ROWS, PAYLINES 6 Reels, 2-3-4-4-3-2 Rows, Up to 75,712 Ways to Win
BET LEVELS £0.20 – £100
MAXIMUM WIN 55,200x Your Stake
Das xBoot slot screenshot of the reels

Das xBoot Bonus Features

Along with its transformative reel configuration, Das xBoot is a pretty complex slot. The main bonus features here include the likes of xNudge wilds, xWays, xBomb multiplier wilds and a couple of free spins bonus rounds. As separate slot features, they make the game seem like a puzzle, but as a united front, they can result in boosted multipliers, increased win ways and massive payouts.


Out of all 15 symbols, 4 symbols are wild in Das xBoot. Two of them, torpedo wilds and periscope wilds, appear in the bonus games only, but the other two, xNudge wild and xBomb wild multiplier, stay active throughout the play.

The 4-rows high xNudge wilds always nudge to appear in full view, increasing their multiplier 1x for each nudge. You’ll spot it hitting reels 3 and 4 in the base game, but in the Silent Hunter Spin bonus round, they’ll land on reel 4 only.

The cool thing about the xBomb multiplier wild is that it can cause a chain of multiple wins on a single spin. When it lands, it boosts the overall win multiplier by 1x and blasts off any non-winning symbols, except wilds and scatters, from the reels. New symbols then fall into the empty gaps, preparing reels for a new potential collapse. The multiplier will be carried over into the next free spins bonus round activated. xBomb multiplier wilds also substitute for all symbols except scatters when they land as part of a winning combination.


Scatters, appearing as radar symbols, can only land on reels 2-5. Landing 3 of the symbols in the base game will activate 8 Silent Hunter Spins, landing 4 will trigger 8 Wolf Pack Spins.


As well as wilds and scatters, look out for xWays symbols on reels 2 and 5. They can reveal 2-3 random regular symbols. If more than one xWays logo lands on the reels, you’ll have the same symbol revealed for all xWays instances.

Free Spins

Two free spins bonus round can activate from the base game, Silent Hunter Spins and Wolf Pack Spins:

Silent Hunter Spins

When the Silent Hunter Spins round is triggered with 3 scatters, reel 3 expands to 8 positions high, with new periscope wilds landing on this reel only.

If you succeed at landing identical symbols on reels 1 and 2 together with a torpedo wild on reel 3, you’ll initiate a torpedo launch sequence. The periscope-like reel 3 will then find a target and launch a torpedo at it. If you hit the target, the periscope wild will expand up and down to cover the entire reel 3. For each nudge down, it will award a 1x multiplier, which stays sticky for the duration of the round. If the target is missed, the pericope wild acts as a single wild.

xBomb wilds, as well as scatters, can also land during the feature, awarding an extra 2 free spins for each additional scatter.

Wolf Pack Spins

When the Wolf Pack Spins feature triggers with 4 scatters, a torpedo tube appears under the reels 2-5, with new torpedo symbols now landing on those reels.

On reels 2 and 5, torpedo wilds can drop the xWays symbols down to the torpedo zone, starting with a +2 xWays and increasing by +1 for each following torpedo wild. On reels 3 and 4, torpedo wilds drop xWays Wild symbols, starting with +2 xWays Wild and increasing by +1 for each following torpedo wild.

When all 4 parts of the torpedo are filled, it’s launched off the reels, increasing the win multiplier 1x and revealing 4 xWays symbols in place of the collected symbols. On reels 1 and 5, they’re transformed to regular symbols and split in the number of ways collected. On reels 3 and 4, xWays symbols transform into wilds. Identical to Silent Hunter Spins, xWay Bombs are also active and landing any scatters will award an extra 2 free spins.

Das xBoot Jackpot

No fixed or progressive jackpots are offered in Das xBoot, but that isn’t to say you can’t win big here. On the contrary, the max reward for going underwater is a mighty 55,200x your stake.

RTP and Volatility

The dangers of WW2 submarine experiences have been reflected appropriately in Das xBoot’s volatility rating. It’s set to high, extreme even, as it should be for a game of such high potential. The RTP figure stands at a no-thrills 96.03%, but be aware of it being prone to sinking to a very low 94.02%.

Where to Play Das xBoot

When the submarine surfaces out of the water, you can join the Das xBoot crew at the best-rated Nolimit City casinos. Our experts recommend Dream Vegas and other similar alternatives from our current toplist.

Das xBoot on Mobile

Experience what it’s like to go deep underwater in a German submarine, Nolimit City style, on your mobile phone or tablet. Designed using state-of-the-art HTML5 technology, Das xBoot can be played on any Android and iOS device.

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